<template>
    <div class="goodsinfo-container">
       <div class="mui-card">
				<div class="mui-card-content">
					<div class="mui-card-content-inner">
						<swiper :lunbotuList="lunbotu"></swiper>
					</div>
				</div>
		</div>

        <div class="mui-card">
				<div class="mui-card-header">{{goodsinfo.title}}</div>
				<div class="mui-card-content">
					<div class="mui-card-content-inner">
						<p class="price">
                            市场价:<del>￥{{goodsinfo.market_price}}}</del>&nbsp;&nbsp;销售价:<span class="now_price">￥{{goodsinfo.sell_price}}</span>
                            
                        </p>
                        <p>购买数量:<numbox @getcount="getSelectedCount" :max="goodsinfo.stock_quantity"></numbox></p>
                        
                        <p>
                            <mt-button type="primary" size="small">立即购买</mt-button>
                            <mt-button type="danger" size="small" @click="addToShopCar">加入购物车</mt-button>
                        </p>
					</div>
				</div>
		</div>

       <div class="mui-card">
		   <div class="mui-card-header">商品参数</div>
				<div class="mui-card-content">
					<div class="mui-card-content-inner">
						<p>商品货号：{{goodsinfo.goods_no}}</p>
						<p>库存情况：{{goodsinfo.stock_quantity}}件</p>
						<p>上架时间：{{goodsinfo.add_time|dataFormat}}</p>
					</div>
				</div>
			<div class="mui-card-footer">
                    <mt-button type="primary" size="large" plain @click="goDesc(id)">图文介绍</mt-button>
                    <mt-button type="danger" size="large" plain @click="goComment(id)">商品详情</mt-button>
                </div>
		</div>
        <transition @before-enter="beforeEnter" @enter="enter" @after-enter="afterEnter">
            <div class="ball" v-show="ballFlag" ref="ball"></div>
        </transition>
        
    </div>    
</template>
<script>
import mui from '../../lib/mui/js/mui.min.js'
import swiper from '../subcomponents/swiper.vue'
import numbox from '../subcomponents/goodsinfo_numbox.vue'
export default {
    data(){
        return{
            id:this.$route.params.id,
            lunbotu:[],
            goodsinfo:{},
            ballFlag:false,
            selectedCount:1
        };
    },
    created(){
        this.getLunbotu(),
        this.getGoodinfo();
    },
    methods:{
        getLunbotu(){
            this.$http.get('api/getthumimages/'+this.id).then(result=>{
                if(result.body.status===0){
                    result.body.message.forEach(item=>{
                        item.img=item.src;
                    })
                    this.lunbotu=result.body.message;
                }
            })
        },

        getGoodinfo(){
            this.$http.get('api/goods/getinfo/'+this.id).then(result=>{
                if(result.body.status===0){
                    this.goodsinfo=result.body.message[0];
                }
            })
        },

        goDesc(id){
            this.$router.push("/home/goodsdesc/"+id);
        },

        goComment(id){
            this.$router.push("/home/goodscomment/"+id);
        },

        addToShopCar(){
            this.ballFlag = !this.ballFlag;
            // { id:商品的id, count: 要购买的数量, price: 商品的单价，selected: false  }
            // 拼接出一个，要保存到 store 中 car 数组里的 商品信息对象
            var goodsinfo = {
                id: this.id,
                count: this.selectedCount,
                price: this.goodsinfo.sell_price,
                selected: true
                };
                // 调用 store 中的 mutations 来将商品加入购物车
                this.$store.commit("addToCar", goodsinfo);
                console.log(goodsinfo.count);
            },

        beforeEnter(el){
        el.style.transform="translate(0,0)"
        },

        enter(el,done){
            el.offsetWidth;

            const ballPosition=this.$refs.ball.getBoundingClientRect();
            const badgePosition= document.getElementById("badge").getBoundingClientRect();
            const xDist=badgePosition.left-ballPosition.left;
            const yDist=badgePosition.top-ballPosition.top;



            el.style.transform=`translate(${xDist}px,${yDist}px)`;
            el.style.transition="all 0.5s cubic-bezier(.4,-0.3,1,.68)";
            done();
        },

        afterEnter(el){
            this.ballFlag=!this.ballFlag
        },

        getSelectedCount(count){
            this.selectedCount=count;
        }
    },
    components:{
        swiper,
        numbox
    }
}
</script>
<style lang="scss" >
.goodsinfo-container{
    background-color: #ccc;
    overflow: hidden;
    .now_price{
        color: red;
        font-size: 16px;
        font-weight: bold;
    }
    .mui-card-footer{
        display: block;
        button{
            margin: 15px 0;
        }
     }
     .ball{
         width: 15px;
         height: 15px;
         border-radius: 50%;
         background-color: red;
         position: absolute;
         z-index: 99;
         top: 390px;
         left: 138px;
     }
}

</style>

